package com.roin.learn.springsecurity.config.security;

import cn.hutool.json.JSONUtil;
import com.alibaba.fastjson.JSON;
import com.roin.learn.springsecurity.enums.ResultCode;
import com.roin.learn.springsecurity.model.JsonResult;
import com.roin.learn.springsecurity.util.ResultTool;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 自定义返回结果：没有权限访问时
 */
public class RestAccessDeniedHandler implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest httpServletRequest, HttpServletResponse response, AccessDeniedException e) throws IOException, ServletException {
        response.setStatus(HttpServletResponse.SC_FORBIDDEN);
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Cache-Control","no-cache");
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json");
        JsonResult result = ResultTool.fail(ResultCode.NO_PERMISSION);
        response.getWriter().write(JSON.toJSONString(result));
        response.getWriter().flush();
    }

}